Incident at MEDICINE HAT AB (CYXH) (Conflict - loss of separation, ATS operating irregularity)


2001-09-10: UPDATE ANS and Airspace reported that NAV CANADA will convene a Fact Finding Board.
2001-09-04: COA 1815, a B737, was enroute at FL 350 from Newark to Vancouver. ACA 150, an A320, was at FL 330, enroute from Vancouver to Montreal. The Calgary Enroute Controller cleared COA 1815 to FL 310. Approximately 20 miles southwest of Medicine Hat VOR, spacing between the 2 aircraft was reduced to approximately 2.7 miles with 1,300 feet vertical separation in an area where 5 miles lateral or 2,000 feet vertical is required.


CADORS Number 2001C1117
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2001-08-31 - 17:01
Day or Night? Day-time
Fatalities 0
Aerodrome ID CYXH
Geographic Location Alberta, Canada, North America, Prairie and Northern Region, Vicinity of Medicine Hat
TSB Occurrence Number A01W0225
TSB Class of Investigation Class 5
AOR Number 17525
Reported By NAV CANADA
Categories Airprox/TCAS alert/loss of separation/(near) midair collisions,ATM/CNS
Events Conflict - loss of separation,ATS operating irregularity

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